List of geothermal power stations in the United States

The Sonoma Calpine 3 geothermal power station of The Geysers in California.

Geothermal power stations in the United States are located exclusively within the Western United States where geothermal energy potential is highest. The highest concentrations are located in the Mayacamas Mountains and Imperial Valley of California, as well as in Western Nevada.

The Geysers, a complex of 22 geothermal power stations located in Sonoma and Lake counties of California, was the first geothermal area to be exploited for commercial electricity generation when Unit 1 was commissioned in September 1960.[1] The complex was then developed into the largest geothermal field in the world with a nameplate capacity of 1,517 MW and an annual generation of 6,516 GWh in 2018.[2][3]

Imperial Valley Geothermal Project is a complex of eleven geothermal power stations located in the Salton Sea Geothermal Field, along the southeastern shore of the Salton Sea in the Imperial Valley of California.[4]

Geothermal power plants/complexes

This is a list of all 31 operational geothermal power plants/complexes in the United States as of 2018.

Name State Location Capacity
(MW) 		Annual Generation
(GWh) 		Owner Type Year Ref
Beowawe  Nevada 40°33′17″N 116°37′03″W / 40.55472°N 116.61750°W / 40.55472; -116.61750 (Beowawe) 19.2 99 (2018) Terra-Gen Power Flash steam (87%)
Binary cycle (13%) 		1985 [5][6]
Blue Mountain  Nevada 40°59′42″N 118°08′35″W / 40.99500°N 118.14306°W / 40.99500; -118.14306 (Blue Mountain) 50 229 (2018) Cyrq Energy Binary cycle 2009 [7][8][9]
Blundell  Utah 38°29′21″N 112°51′11″W / 38.48917°N 112.85306°W / 38.48917; -112.85306 (Blundell) 11 223 (2018) PacifiCorp 2007 [7][10]
Brady  Nevada 39°47′46″N 119°00′36″W / 39.79611°N 119.01000°W / 39.79611; -119.01000 (Brady) 21.5 77 (2018) Ormat 1992 [7][11][12]
Coso  California 36°01′00″N 117°47′51″W / 36.01667°N 117.79750°W / 36.01667; -117.79750 (Coso) 272.3 1,176 (2018) Coso Operating Company Flash steam 1987 [13][14]
Cove Fort  Utah 38°33′42″N 112°34′48″W / 38.56167°N 112.58000°W / 38.56167; -112.58000 (Cove Fort) 27 158 (2018) Enel Green Power 2014 [7][15]
Desert Peak  Nevada 39°45′14″N 118°57′13″W / 39.75389°N 118.95361°W / 39.75389; -118.95361 (Desert Peak) 92 91 (2018) Ormat Flash steam (71.7%)
Binary cycle (28.3%) 		1985 [16][17]
Dixie Valley  Nevada 39°57′59″N 117°51′21″W / 39.96639°N 117.85583°W / 39.96639; -117.85583 (Dixie Valley) 61 496 (2018) Terra Gen Power Flash steam (99%)
Binary cycle (1%) 		1988 [18][19]
Don A. Campbell  Nevada 38°50′10″N 118°19′27″W / 38.83611°N 118.32417°W / 38.83611; -118.32417 (Don A. Campbell) 39 327 (2018) Ormat 2013 [7][20][21]
The Geysers  California 38°47′26″N 122°45′21″W / 38.79056°N 122.75583°W / 38.79056; -122.75583 (The Geysers) 1,590 6,516 (2018) Calpine, NCPA, SVP, USRG Dry steam 1960 [22][3]
Heber  California 32°42′52″N 115°31′37″W / 32.71444°N 115.52694°W / 32.71444; -115.52694 (Herber) 161.5 539 (2018) Ormat Binary cycle 1985 [23][24]
Imperial Valley  California 33°09′48″N 115°37′00″W / 33.16333°N 115.61667°W / 33.16333; -115.61667 (Imperial Valley) 432.3 1,741 (2018) CalEnergy, EnergySource Dry steam 1982 [25][26]
Jersey Valley  Nevada 40°10′52″N 117°28′33″W / 40.18111°N 117.47583°W / 40.18111; -117.47583 (Jersey Valley) 10 72 (2018) Ormat 2011 [7][27]
Lightning Dock  New Mexico 32°08′41″N 108°50′19″W / 32.14472°N 108.83861°W / 32.14472; -108.83861 (Lightning Dock) 4 13 (2018) Cyrq Energy Binary cycle 2014 [28][29]
Mammoth  California 37°38′44″N 118°54′42″W / 37.64556°N 118.91167°W / 37.64556; -118.91167 (Mammoth) 40 215 (2018) Ormat Binary cycle 1984 [30][31][32][33]
McGinness Hills  Nevada 39°35′21″N 116°54′42″W / 39.58917°N 116.91167°W / 39.58917; -116.91167 (McGinness Hills) 138 771 (2018) Ormat Binary cycle 2012 [7][34][35][36]
Neal Hot Springs  Oregon 44°01′23″N 117°28′04″W / 44.02306°N 117.46778°W / 44.02306; -117.46778 (Neal Hot Springs) 22 176 (2018) Ormat 2012 [7][37]
North Brawley  California 33°00′52″N 115°32′27″W / 33.01444°N 115.54083°W / 33.01444; -115.54083 (North Brawley) 64 56 (2018) Ormat Binary cycle 2010 [7][38][39]
Ormesa  California 32°46′59″N 115°15′15″W / 32.78306°N 115.25417°W / 32.78306; -115.25417 (Ormesa) 101.6 268 (2018) Ormat Binary cycle 1987 [40][41][42][43]
Patua  Nevada 39°34′58″N 119°04′29″W / 39.58278°N 119.07472°W / 39.58278; -119.07472 (Patua) 70 138 (2018) Cyrq Energy Binary cycle (85.7%)
Solar PV (14.3%) 		2017 [44][45][46]
Puna [note 1]  Hawaii 19°28′43″N 154°53′20″W / 19.4785°N 154.8888°W / 19.4785; -154.8888 (Puna) 38 323 (2017) Ormat Binary cycle 1992 [7][48]
Raft River  Idaho 42°05′58″N 113°22′57″W / 42.09944°N 113.38250°W / 42.09944; -113.38250 (Raft River) 11 83 (2018) Ormat Binary cycle 2008 [7][49][50]
Salt Wells  Nevada 39°17′40″N 118°34′21″W / 39.29444°N 118.57250°W / 39.29444; -118.57250 (Salt Wells) 13.4 98 (2018) Enel Green Power Binary cycle 2012 [51][52][53][54]
San Emidio  Nevada 40°22′50″N 119°23′59″W / 40.38056°N 119.39972°W / 40.38056; -119.39972 (San Emidio) 11 64 (2018) Ormat 2012 [7][55]
Soda Lake  Nevada 39°33′22″N 118°50′53″W / 39.55611°N 118.84806°W / 39.55611; -118.84806 (Soda Lake) 37 61 (2018) Cyrq Energy 1987 [56][57]
Steamboat  Nevada 39°23′40″N 119°44′51″W / 39.39444°N 119.74750°W / 39.39444; -119.74750 (Steamboat) 73 [note 2] 507 (2018) Ormat Binary cycle (80.3%)
Flash steam (19.7%) 		1988 [59][60]
Stillwater  Nevada 39°32′45″N 118°33′22″W / 39.54583°N 118.55611°W / 39.54583; -118.55611 (Stillwater) 75 159 (2018) Enel Green Power Binary cycle (65.3%)
Solar PV (34.7%) 		2009 [61][62]
Thermo 1  Utah 38°09′39″N 113°11′42″W / 38.16083°N 113.19500°W / 38.16083; -113.19500 (Thermo 1) 13 65 (2018) Cyrq Energy 2013 [7][63]
Tungsten Mountain  Nevada 39°40′04″N 117°41′35″W / 39.66778°N 117.69306°W / 39.66778; -117.69306 (Tungsten Mountain) 27 213 (2018) Ormat 2017 [7][64]
Tuscarora  Nevada 41°28′02″N 116°09′02″W / 41.46722°N 116.15056°W / 41.46722; -116.15056 (Tuscarora) 18 125 (2018) Ormat 2012 [7][65]
Wabuska  Nevada 39°09′48″N 119°10′50″W / 39.16333°N 119.18056°W / 39.16333; -119.18056 (Wabuska) 4 [note 3] 9 (2017) Open Mountain Energy Binary cycle 1984 [7][66][67]

Notes

  1. ^ Offline due to the 2018 lower Puna eruption. The Puna Complex is currently being expanded from 38 MW to 46 MW and is expected to resume operations by the end of 2020.[47]
  2. ^ Currently being expanded from 73 MW to 93 MW. Expansion is expected to be complete by the end of 2020.[58]
  3. ^ Currently being expanded from 4 MW to 24 MW. Expansion is expected to be complete by the end of 2020.[66]

Proposed

Name State Location Capacity
(MW) 		Owner Type Year Ref
Hell's Kitchen  California 33°11′55″N 115°36′41″W / 33.19861°N 115.61139°W / 33.19861; -115.61139 (Hell's Kitchen (Proposed)) 140 Controlled Thermal Resources 2023 [25][68]
Casa Diablo IV  California 37°38′44″N 118°54′42″W / 37.64556°N 118.91167°W / 37.64556; -118.91167 (Casa Diablo IV (Proposed)) 30 Ormat Binary cycle 2021 [68][69]

See also

References

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  4. ^ Bernick, Michael (December 12, 2023). "The Jobs Perplex Of The Lithium Valley". Forbes. Retrieved February 5, 2024.
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  6. ^ "Electricity Data Browser - Beowawe". www.eia.gov. Retrieved February 6, 2020.
  7. ^ a b c d e f g h i j k l m n o p "Ormat Technologies Inc. - Ormat Technologies Inc. - Global Projects". www.ormat.com. Retrieved February 5, 2020.
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List of geothermal power stations by country